An example of an action that is a breach of Rule 13.1e is when: A player roughens or scrapes the grass on the putting green to determine which way the grain is growing. Examples of actions that are ...

The real magic is in the surface's directionality. BirdieBall's turf has a distinct grain just like on an actual putting green. You can see and feel the blades leaning slightly in one direction.

Q. May I remove sand and/or loose soil on the putting green? A. Yes. Sand and loose soil may be removed on the putting green (see Rule 13.1c(1)). But, if you remove sand or loose soil anywhere else on ...